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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <base href="www.baidu.com">
    <title>网络安全训练营</title>
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<body bgcolor="orange">
    <h2 align="center">极客时间</h2>
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    <p>
        <a style="color: brown;" href="https://u.geekbang.org/">
          <img title="极客时间" src="D:\workspace\safer\第一课\images\moon.jpg" width="700" alt="本地图片加载失败">
          <img title="极客时间" src="http://pic1.win4000.com/wallpaper/2019-11-07/5dc3df0553b91.jpg" width="700" alt="网络图片加载失败">
        </a>
    </p>

    
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